.TH SIGNUM 1 "9 April 2008" "WFDB 10.4.6" "WFDB Applications Guide"
.SH NAME
signum \- print signal numbers of a WFDB record having specified names
.SH SYNOPSIS
\fBsignum -r\fR \fIrecord\fR [ \fIoptions\fR ... ]
.SH DESCRIPTION
.PP
\fBsignum\fR prints the signal numbers in the specified \fIrecord\fR
(one per line) corresponding to the specified signal names.
.PP
\fIOptions\fR include:
.TP
\fB-h\fR
Print a usage summary.
.TP
\fB-s\fR \fIname\fR [ \fIname\fR ... ]
Print signal numbers of signals that have the specified \fIname\fRs. Signals
are numbered 0, 1, 2 .... If the specified signal does not exist in
\fIrecord\fR, \fBsigname\fR outputs "X".
.PP
If two or more signals in a record match a specified \fIname\fR, \fBsignum\fR
outputs the numbers of all the matching signals on a single line.
.SH ENVIRONMENT
.PP
It may be necessary to set and export the shell variable \fBWFDB\fR (see
\fBsetwfdb\fR(1)).
.SH SEE ALSO
\fBsigname\fR(1)
.SH AUTHOR
George B. Moody (george@mit.edu)
.SH SOURCE
http://www.physionet.org/physiotools/wfdb/app/signum.c
